Atomizer for liquid-fuel engines



E. H'. TARTRAIS. AToMlzER Foa LIQUID FUEL ENGINES.

APPLICATION FILED NOV. 2l, i918.

Patented Jan. 13, 1920.

SMM.,

EUGNE HENRI `'lAB,'.lRA.IS, OF MAISONS-LAFFITTE, FRANCE. I

ATOMIZER FOR LIQUID-FUEL ENGINES.

'Specification of Letters Patent.

Patented Jan, 13, 1920.

Application pled November 21, 1918. Serial No. 263,581.

To all 'whom it may concern:

Be it known that I, EUGENE HENRI TAR- TRAIS, citizen of the Republic of France, residing at 3 Rue de Mexico, MaisonsLaiiitte, Seine and Oise, in the Re ublic of France,

have invented new and useful Improvements i vadded the pressure of the gases into the cyll inder, causes the valve to rise very sllghtly. j,

in Atomizers for Liquid-Fuel Engines, of which the following is a specification.

In liquid fuel engines working according to the Diesel system or analogous systems and in which injection of liquid fuel takes place the atomization of the fuel was heretofore effected by means of a jet of compressed air. If the compressed air be produced by a special air pump, considerable mechanical complication results. If, on the contrary, the air is taken into the cylinder itself, it generates in the atomizing nozzles a great quantity .of heat which, actlng upon the fuel, causes the formation of carbonaceous deposits and rapid clogging.

It thus becomes desirable to dispense with compressed air, and this result may be secured by means of the atomizer forming the subject matter of the invention and `a form of construction of which is shown insectionin the accompanying drawing.

Said atomizer. comprises a valve 1 the rod of which fits withoutplay into the body 2 having the knife shaped seat 3. The valve itself has a flat bearing terminating in a sharp edge 4. The s- 5 holds said valve on its seat and t evalve rod is provided with grooves such as 6g At 7, is rovided a fin'elilter. Around thebody o the a paratus a cooling circulation,`'8 is set up.

e body 2and the valve 1 are madeof hard practically non oxidizable metal, such as ra id hardened steel. I

he operation is as follows:

At the selected moment of the c cle, a.

' fuel pump of any known type,.or preerably of the t described 'in my application for Letters atent filed November 21, 19.18, Serial Number 263,580; forces or delivers a certain quantity of liquid which must, afterv having passed through the filter 7, raise the valve 1 from-itsseat in order to enter the cylinder. It will be understood that the liquid injected by the pump, prior to enter- .ing the cylinder, passes along the groove 6 formed in the .face ofthe valve rod. The strength of the spring,I to which will be The liquid escapes Aas a very thin sheet. The

Isharp edge 4 prevents the liquid from sticking. Said liquid spreads uniformly and is V atomized by its impact with the surrounding air. The knife shape of the seat prevents impurities from interfering with the complete closing of the valve. The filter 7 answers the same urpose.

It will be notlced that, in order to allow theatomizer to work exactly at the selected moment of the cycle, it will be necessary to prevent formation of gases beyond the pump, that is to say in the piping or in the atomizer itself. To this end the atomizer is surrounded by a coolingl circulation as active as Hpossible .and also the spring 5 must be su ciently strong to always maintain adequate pressure on the liquid to prevent giving off of troublesome gases.

It will be apparent that they above described atomizer may be used for injecting water or any other liquid.

Having now described my invention, what I claim as new and desire to secure by Letters Patent is:

1. A liquid atomizer for engines working under injection of liquid fuel comprising, in combination: a valve body to be secured onto the engine,-a knife shaped valve seat formed by the inner end of the valve body, a valve with a flat bearing face having a sharpened edge, a valve rod fitting without play into the valve body, assages provided on said rod in order to aiiow the liquid to pass along the same, a return spring tending to hold the valve against its seat and a joint connecting the outer end of the valve to the passage or pipe carrying the injected liquid,-substant1ally as described and for the p purpose specified. l

the engine,-a knife shaped valve seat formed by the inner end of the valve body, a valve with a fiat bearing face having a sharpened edge, a valve rod. fitting without play into the valve body, assages 'rovided' on said rod in order to a low the iquid to pass along the same, a return spring tending to hold the valve against its seat and a joint connecting the outer'end of the valve to the passage or pipe carrying the injected liqu1d,-and meanspfor providing a cooling circulation around the valve body,-'substan` fied.

Tio tially asdesc'ribed and 'for the purpose specj-l 3. A liquid atomizer for engines working under injection of liquid uel comprising, in combination, a primary member provided with an annular flat surfaced portion having a sharpened edge, a secondary member provided with a knife shaped annular projection which is adapted to bear upon the said flat surfaced portion, a passa e bein provided or admitting a liquid el at t e inside of the line 1of contact of both members, 10 one of said members being stationary and the other member being movable and yielding means for returning the movable member into contact with the stationary member.

In testimony whereof I have signed my 15 name to this specification.

EUGENE HENRI TARTRAIS. 

